The 48-year-old triple-threat, who was sold more than 75 million albums during her illustrious career, is no stranger to lending her talents to the Billboard Music Awards stage. She first wowed the crowd when she performed "Waiting for Tonight" at the 1999 Billboard Music Awards. She's performed at the award show on several occasions over the years, performing "First Love" at the 2014 Billboard Music Awards, where she also received the Icon Award.